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(Application led Ely 12, 1900A (No Mndei.)

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UNITED STATES PATENT OFFICE.

HENRY W. WOOLBERT, F BELLE VERNON, PENNSYLVANIA..

VES S-EL.

SPECIFICATION' forming part of Letters Patent No. 665,767, dated January 8, 1901.

Application filed May 12, 1900- Serial No. 16,530. (No model.)

compressed air in the vessel when closing down the lid or cover.

The invention consists of novel features and parts and combinations ot' the same, as will be fully described hereinafter and then pointed out in the claim.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specitication, in which similar characters of reference indicate corresponding parts in all the views.

Figure l is a perspective view of the vessel-body. Fig. 2 is an inverted 'plan view of the cover. Fig. 3 is a perspective view of a modified form of the body. Fig. 4 is an inverted plan view of the cover for the same. Fig. 5 is a sectional side elevation of the improvement having the body and cover shown in Figs. 1 and 2. Fig. 6 is a similar view of the modified form of the improvement having the body and cover shown in Figs. 3 and 4. Fig. 7 is an enlarged sectional side elevation of a modified form of the improvement. Fig. 8 is a transverse section of the same. Fig. 9 is a sectional side elevation of a", further modified form of the improvement, and Fig. l0 is a similar view of another modified form of the improvement.

The improved vessel illustrated in Figs. 1, 2, and 5 consists of a body A, formed at its upper end with an outwardly-extendingflange A, terminating in a vertically-rising rim A2 to form an abutment for a rubber ring or gasket B, resting on the iange A' and engaged by a rib C' on the under side of the cover C, used for closing the body A after the latter is filled with the material to be stored. On the under side of the somewhatdished cover C is formed a cylindrical cup D, in which fits a valved plunger E, having its stem E' extending upwardly through an opening in the cover C to connect with a camlever F, arranged on the top of lche dished cover C and under the control of the operator to permit of swinging the lever over, so as to draw the plunger E up in the cup D after the body is lled and the cover is placed in position on said body. The valve E9 on the plunger E opens outwardly to allow escape of air, but prevents entrance of air to the cup D. Now it is evident that when l(he body A is filled with fruit or other product and the cover C is placed in position on the ring orgasket B and the plunger E is in an uppermost position and the operator swings the cam-lever F over to the position shown in Fig. 5 then kthe plunger E is moved downward in the cup to force a portion of the air out of the body A, and when the lever is swung back to its rst position the plunger is drawn up in the cup, and as the air now spreads into the cup the air-pressure is further reduced and a partial vacuum is formed in the body.

In the modified form shown in Figs. 3, 4, and 6 the body A3 is formed at its upper end with outwardly-extending lugs A4 to support a gasket B' and be engaged at their under side by lugs G on arms G, held on the top of the cover O2 used for closing the body A3. Ou the under side of the cover O2 is formed a cup D', in which is mounted to slide a valved plunger E2, connected at its stem E3 with a cam-lever F', arranged on the outside of the cover and under the control of the operator for the purpose above described in reference to Figs. l, 2, and 5.

In the modified form shown in Figs. 7 and 8 the under side of the cover C3 is provided with a cup D2, in which is mounted a plunger E4, connected by a link H with the upwardlyextending arms F2 of a bell-crank lever F3, fulcrumed at F4 on lugs G2, extending upwardly from the arms Gr3 used for securingthe cover in place on the body A, as above described in reference to Fig. 6. The operation of this device is the same as above described in reference to Figs. 5 and 6-that is, after the cover is placed on the body As with the ,plunger E4 first in an uppermost position then ICO In the modied form shown in Fig. 9 the under side of the cover C4 is formed with a cup D3, in which is mounted to slide a plunger E5, having its stem E6 formed with a loop E7, adapted to be engaged by a handle I under the control of the operator for moving` the' plunger E5 downward and upward in the @up D3 after the cover C4 is placed in position on the body A3.

In the modified form shown in Fig. l0 the under side of the cover C5 is formed with a cup D4, in which is mountedto slide a plunger E6, having an upwardly-extending threaded stern E7, on which screws a wing-nut ES, abutting against the top of the cover C5, so as to allow of moving the plunger E6 downward and upward in the cup D4 for the purpose explained ed in reference to the other gures of the d rawings.

`or outwardly opening valve controlling the perforation of the plunger.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HENRY W. WOOLBERT.

Witnesses:

HARRY W. LEACH, WINFIELD S. SHUNK. 

